Sienna Miller's Tuna Trauma

Vocal Greenpeace campaigner Willie McKenzie believes that Nobu’s 25 locations are “feeling the pain” as the result of a letter sent to chef and founder Nobu Matsuhisa protesting his use of endangered bluefin tuna. British heiress Kate Goldsmith masterminded the missive, which was signed by stars and socials, including Sienna Miller, Elle Macpherson, Charlize Theron and Jemima Khan. But regardless of the many celebs currently boycotting the seafood empire, Nobu seems to be wavering only slightly on its stance. Though a restaurant spokesperson told W that it is now looking at sourcing Australian farm-raised tuna as an alternative, she asserted that there is “still an enormous demand for [bluefin tuna] in our restaurants.”